EP 2030204 A4 20090617 - METHOD AND APPARATUS FOR EMBEDDING SECOND CODE INTO OPTICAL DISC DATA BY DATA MODULATION RULE VARIATION
Title (en)
METHOD AND APPARATUS FOR EMBEDDING SECOND CODE INTO OPTICAL DISC DATA BY DATA MODULATION RULE VARIATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUM EINBETTEN EINES ZWEITEN CODES IN OPTISCHER-DATENTRÄGER-DATEN DURCH DATENMODULATIONSREGELVARIATION
Title (fr)
PROCÉDÉ ET APPAREIL D'INCORPORATION D'UN CODE DE DEUXIÈME NIVEAU DANS DES DONNÉES ENREGISTRÉES SUR DISQUE OPTIQUE PAR VARIATION DE LA RÈGLE DE MODULATION DES DONNÉES
Publication
Application
Priority
US 2006022921 W 20060612
Abstract (en)
[origin: WO2007145622A1] There are provided a method and apparatus for embedding a second level code into a first level code of an optical disc by data modulation rule variation. The apparatus includes a multi-level, varying rule based modulator (199) for modulating the first level code to obtain a channel bit stream representative of the first level code and having the second level code embedded therein. The multi-level, varying rule based modulator modulates the first level code using modulation rules respectively having different statistical properties of pit-land length distributions that preserve a readability of the first level code and that are distinguishable at readout of the optical disc. The different statistical properties represent binary or multilevel data of the second level code.
IPC 8 full level
G11B 20/00 (2006.01); G11B 20/10 (2006.01); G11B 20/14 (2006.01)
CPC (source: EP US)
G11B 20/00086 (2013.01 - EP US); G11B 20/00579 (2013.01 - EP US); G11B 20/00688 (2013.01 - EP US); G11B 20/00884 (2013.01 - EP US); G11B 20/1426 (2013.01 - EP US); G11B 20/1496 (2013.01 - EP US); G11B 7/24088 (2013.01 - EP US); G11B 2020/1267 (2013.01 - EP US); G11B 2020/1287 (2013.01 - EP US); G11B 2020/1457 (2013.01 - EP US); G11B 2020/1465 (2013.01 - EP US); G11B 2220/2562 (2013.01 - EP US)
Citation (search report)
- [XA] WO 0241316 A1 20020523 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [XA] EP 1596388 A1 20051116 - SONY CORP [JP]
- [A] SCHOUHAMER IMMINK K A: "EFMPLUS: THE CODING FORMAT OF THE MULTIMEDIA COMPACT DISC", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 41, no. 3, 1 August 1995 (1995-08-01), pages 491 - 497, XP000539497, ISSN: 0098-3063
- See references of WO 2007145622A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2007145622 A1 20071221; CA 2653863 A1 20071221; CA 2653863 C 20140909; CN 101461005 A 20090617; CN 101461005 B 20120530; EP 2030204 A1 20090304; EP 2030204 A4 20090617; JP 2009540486 A 20091119; JP 4981130 B2 20120718; US 2010188272 A1 20100729; US 7928865 B2 20110419
DOCDB simple family (application)
US 2006022921 W 20060612; CA 2653863 A 20060612; CN 200680054955 A 20060612; EP 06784810 A 20060612; JP 2009515358 A 20060612; US 30828108 A 20081211